Decoding THz‐Driven Dynamic Fingerprints of Ferroelectric Nanotwin Networks
ABSTRACT Ultrafast polarization dynamics in ferroelectrics are of considerable interest for high‐speed tunable dielectrics and electro‐optics. Extended domain wall networks formed in ferroelectric twin nanodomains can support collective dynamics in the terahertz regime but require techniques that track polarization and strain evolution driven by ...
Xiaojiang Li +20 more
wiley +1 more source
Multi‐Mode Deep Strong Coupling in a Multi Quantum Well Fabry–Perot Cavity
Multi‐mode deep‐strong coupling is demonstrated in a 166‐well heterostructure that acts as a Fabry–Perot cavity. Even cavity modes couple strongly to the cyclotron resonance, producing large vacuum Rabi splittings and a rich polaritonic spectrum captured by a full Hopfield model.
Lucy Hale +6 more
wiley +1 more source
VO<sub>2</sub>-Graphene Terahertz Multifunctional Metasurface with Switchable Broadband Waveplates and Absorber. [PDF]
Su H +10 more
europepmc +1 more source
Generating Circularly Polarized Light Using Hybrid Near‐Zero and High‐Index Materials
A flat‐optics approach to manipulating the polarization state of light is proposed using evanescent‐wave interactions in hybrid epsilon‐near‐zero and high‐index materials. The design enables linear‐to‐circular polarization conversion in a wavelength‐scale device design without depending on patterning or bulky optics and operates in both reflection and ...
Ben Johns +4 more
wiley +1 more source
Symmetry control by Raman-mode excitations via anharmonic couplings with terahertz field-induced infrared modes in ferroaxial PbWO<sub>4</sub>. [PDF]
Yamamoto M +8 more
europepmc +1 more source
A single‐chip dual‐wavelength coherent photon source is proposed to add parametric uncertainty and improve the security of single‐photon differential binary‐phase‐shift‐keying quantum key distribution. This wavelength‐uncertain coding or decoying operation enables flexible and secure D‐BPSK‐QKD transmission over a wavelength‐division‐multiplexed ...
Sze‐En Lai +4 more
wiley +1 more source
Lens Antenna Arrays for THz Superconducting HEB Mixers: A Review and a Metasurface Coupling Approach. [PDF]
Gan Y, Peng R, Feng S, Mu M, Wang Q.
europepmc +1 more source
A compact reflective terahertz quarter‐wave metasurface fabricated via 2PP‐3D printing method is experimentally demonstrated near 1 THz frequency. Broadband linear‐to‐circular polarization conversion is achieved over 0.75–1.30 THz (∼54% fractional bandwidth), with axial ratio below 3 dB and ellipticity approaching −1.
Anjali Chaudhary +5 more
wiley +1 more source
Conductivity Spectroscopy for Investigation and Discovery of Photovoltaic Materials. [PDF]
Reid OG, Larson BW.
europepmc +1 more source
2D Materials Empowered Radar Absorbing Materials: A Review
Recent progress in 2D materials empowered radar absorbing materials (RAMs) is reviewed, highlighting four key structural design strategies that enhance electromagnetic wave absorption. Porous structures, heterogeneous interfaces, printed metamaterials, and tunable metasurfaces are compared in terms of their governing physics, fabrication complexity ...
Yujie Zhong +4 more
wiley +1 more source

